Sash-lock.



D. A. TEETER.

SASH LOOK.

APPLICATION IILBD APR. 24. 1909 Patented Jam 18, 1910.

DAVID A. TEE'IER, OF NORTH PLAINFIELD, NEW JERSEY.

SASI-I-LOCK.

Specification of Letters Patent.

Patented Jan. 18, 1910.

Application filed April 24, 1909. Serial No. 491,931.

To all whom it may concern:

Be it known that I, DAVID A. TEETER, a citizen of the United States,residing at Xorth Plaintield, in the county of Somerset and State of NewJersey, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification, reference being had tothe accompanying drawings.

This invention relates to improvements in window sash locks.

The object of the invention is to provide a simple and practical deviceof this character which will effectively lock the sashes in their closedposition, which will hold the sashes against lateral vibration ormovement, which will be self locking when the window sashes assume theirclosed position and which will be easy to unlock and attractive inappearance.

With the above and other objects in view, the invention consists of thenovel features of construction and the combination and arrangement ofparts hereinafter fully described and claimed, and illustrated in theaccompanying drawings, in which Figure- 1 is a perspective view ofportions of two window sashes showing the application of the inventionthereto; Fig. 2 is a longitudinal sectional view; and Figs. 3 and 4: areperspective views of the two parts of the device.

In the drawings 1 denotes the upper bar or rail of the lower sash and 2the lower bar or rail of the upper sash, on which bars are secured thetwo parts 3, i of my improved sash lock. The part or member 3 consistsof a casing for a spring pressed locking bolt 5, said casing consistingof an enlarged hollow central portion 6 and oppositely projecting sideflanges 7 apertured to receive screws or similar fastenings by means ofwhich said member is secured upon the bar 2. The enlarged centralportion 6 of the member 3 has a transverse guide rib 8 provided with abearing opening to receive one end of the bolt 5, which latter has atits other or front end an enlarged portion or head 9. This head is ofrectangular-shape in cross section and slides through a similar-shapedopening at the front end of the enlargement 6, the outer extremity ofsaid head 9 being bev eled downwardly and forwardly, as shown at 10, fora purpose presently explained. Provided on the forward portion of thebolt is astop pin 11 to engage the inner face of the front end or wallof the cavity in the enlargement 6 and against which bears one end of acoil spring 12. This spring surrounds the intermediate portion ofthe'bolt 5 and has its other end bearing against the rib S. The otherpart or member 4 of the device is similar in shape and comprises acasing for a spring actuated bolt retracting pin 13. Said member a hasat its side portions apertured attaching flanges let similar to theflanges 6 and its central portion is enlarged, as at 15, and providedwith a cavity for the reception of the pin 13. Said pin is slidablymounted in an opening in the outer wall of the cavity in the enlargement15 and also in an opening in a transverse rib 16 formed in said cavity.The inner end of said pin is disposed opposite and projects into anopening 17 formed in the inner end wall of the cavity in the enlargement15 for the reception of the head 9 on the end of the bolt 5.

Arranged upon the pin 13 between the rib 16 and a transverse stop pin 18in said pin 13 is a coil spring 19 which retracts the pin 13 and holdsthe head or finger piece 20 upon its front end at a suitable distancefrom the outer end wall of the enlargement 15. It will be seen that whenthe sashes are moved to their closed position the beveled end 10 of thehead on the bolt 5 will spring into the socket or opening 17 in themember 4 and thereby cause the device to lock the sashes in closedposition and that when the head 20 on the pin 13 is pushed inwardly saidretracting or releasing pin 13 will push the head of the bolt out of theopening 17, thereby unlocking the sashes.

For the purpose of holding the two sashes firmly together when in lockedposition, and to effectively prevent lateral movement or vibration ofthe sashes, the front ends of the flanges 7 of the member 3 are formedwith upwardly projecting V-shaped ribs 21 and the inner ends of theflanges 1 f on the member 1 are formed with downturned hook portions 22shaped to receive the projections 21 when the sashes are in their closedposition. This construction, it will be noted, not only prevents lateralvibration of the sashes with respect to each other but also strengthensthe locking connection between them.

If desired, I may form upon the outer end of the member 4 an outwardlyand downwardly curved finger piece 23 which may be used as a hand liftfor raising the lower sash after the lock has been released. If desired,

the releasing pin 13 may be used without the spring 19.

Vhile I have shown and described the preferred embodiment of theinvention, it will be understood that various changes in the form,proportion and arrangement of parts may be resorted to within the spiritand scope of the invention.

Having thus described the invention what is claimed is:

A sash fastening device comprising a latch member and a keeper member,each embodying a casing having laterally extending attaching flanges atthe base thereof, the easing of the latch member having a transversepartition between its front and rear walls and being formed in its frontwall and partition with openings, and the casing of the keeper memberbeing similarly formed with a transverse partition and provided in its 1front and rear walls and in said partition with registering openings,transverse V- shaped lugs on the front ends of the flanges of the latchmember on opposite sides of and flush with the front end of the casingthereof, transverse V-shaped hooks on the front ends of the flanges ofthe keeper mem- T ber on opposite sides of and flush. with the front endof the casing thereof, said hooks being adapted to engage said lugs todraw the front walls of the casings in abutting contact and bring theopenings in said walls into accurate register, the base portions of thecasing being flush with the flanges to rest squarely upon the faces ofthe meeting rails of the sashes, a latch bolt having a beveled head toengage the openings in the front walls of the casings and a shankslidably mounted in the opening in the partition in the latch member, aspring about said shank between said front wall of the casing of thelatch member and the partition for projecting said bolt, a releasingstem movable in the openings in the walls and partition of the casing ofthe keeper member, a retracting spring fixed at one end to said stem andbearing at its opposite end against the partition in said keeper member,and a push button upon the outer end of said stem.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

DAVID A. TEETER. Vitnesses:

Vii. J. Connor, VILLIAM L. SHARKEY.

